README.md

@sapphire/duration

Duration utilities for JavaScript.

Table of Contents

• Features
• Installation
• Usage
  • Human Readable Milliseconds
  • Parsing a Duration
  • Serializing a Duration
  • Localizing with Durations
• Buy us some doughnuts
• Contributors ✨

Features

• Written in TypeScript
• Bundled with esbuild so it can be used in NodeJS and browsers
• Offers CommonJS, ESM and UMD bundles
• Fully tested

Installation

You can use the following command to install this package, or replace npm install with your package manager of choice.

npm install @sapphire/duration

Usage

Note: While this section uses require, the imports match 1:1 with ESM imports. For example const { Duration } = require('@sapphire/duration') equals import { Duration } from '@sapphire/duration'.

Human Readable Milliseconds

Milliseconds are often hard for humans to quickly parse, so it's nice to use named enum members to make it easier to read.

// Import the Time enum
const { Time } = require('@sapphire/duration');

setTimeout(() => {
	// Do something in half a second
}, Time.Second / 2 /* 500 */);

setTimeout(() => {
	// Do something in 6 hours
}, Time.Hour * 6 /* 21600000 */);

setTimeout(() => {
	// Do something in 1 day
}, Time.Day /* 86400000 */);

Parsing a Duration

// Import the Duration class
const { Duration } = require('@sapphire/duration');

// Create a Duration from a string
new Duration('1d3h15m3s').offset; // 98103000
new Duration('1 day, 3h & 15m, some extra characters, and another 3 seconds').offset; // 98103000

// The date from now after the specified duration
new Duration('1d3h15m3s').fromNow;

// Or use a specific date
new Duration('1d3h15m3s').dateFrom(new Date('2020-01-01T00:00:00.000Z'));

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new Duration('1 nanosecond').offset; // 0.000001
new Duration('2 nanoseconds').offset; // 0.000002
new Duration('1 ns').offset; // 0.000001

new Duration('1 millisecond').offset; // 1
new Duration('2 milliseconds').offset; // 2
new Duration('1 ms').offset; // 1

new Duration('1 second').offset; // 1000
new Duration('2 seconds').offset; // 2000
new Duration('1 sec').offset; // 1000
new Duration('2 secs').offset; // 2000
new Duration('1 s').offset; // 1000

new Duration('1 minute').offset; // 60000
new Duration('2 minutes').offset; // 120000
new Duration('1 min').offset; // 60000
new Duration('2 mins').offset; // 120000
new Duration('1 m').offset; // 60000

new Duration('1 hour').offset; // 3600000
new Duration('2 hours').offset; // 7200000
new Duration('1 hr').offset; // 3600000
new Duration('2 hrs').offset; // 7200000
new Duration('1 h').offset; // 3600000

new Duration('1 day').offset; // 86400000
new Duration('2 days').offset; // 172800000
new Duration('1 d').offset; // 86400000

new Duration('1 week').offset; // 604800000
new Duration('2 weeks').offset; // 1209600000
new Duration('1 wk').offset; // 604800000
new Duration('2 wks').offset; // 1209600000
new Duration('1 w').offset; // 604800000

new Duration('1 month').offset; // 2629800000
new Duration('2 months').offset; // 5259600000
new Duration('1 b').offset; // 2629800000
new Duration('2 mo').offset; // 5259600000

new Duration('1 year').offset; // 31557600000
new Duration('2 years').offset; // 63115200000
new Duration('1 yr').offset; // 31557600000
new Duration('2 yrs').offset; // 63115200000
new Duration('1 y').offset; // 31557600000

Serializing a Duration

// Import the DurationFormatter class
const { DurationFormatter } = require('@sapphire/duration');

const formatter = new DurationFormatter();

// Serialize a duration
formatter.format(98103000); // 1 day 3 hours 15 minutes 3 seconds
formatter.format(-98103000); // -1 day 3 hours 15 minutes 3 seconds

// Serialize a duration with specified precision
formatter.format(98103000, 2); // 1 day 3 hours

Localizing with Durations

// Import the DurationFormatter class
const { DurationFormatter, TimeTypes } = require('@sapphire/duration');

// Create custom unit names
const units = {
	[TimeTypes.Year]: {
		1: 'año',
		DEFAULT: 'años'
	}
};

// Create a formatter the custom units
const formatter = new DurationFormatter(units);

// Serialize a duration
formatter.format(31557600000); // 1 año
formatter.format(63115200000); // 2 años

Buy us some doughnuts

Sapphire Community is and always will be open source, even if we don't get donations. That being said, we know there are amazing people who may still want to donate just to show their appreciation. Thank you very much in advance!

We accept donations through Open Collective, Ko-fi, PayPal, Patreon and GitHub Sponsorships. You can use the buttons below to donate through your method of choice.

Donate With	Address
Open Collective	Click Here
Ko-fi	Click Here
Patreon	Click Here
PayPal	Click Here

Contributors ✨

Thanks goes to these wonderful people (emoji key):

Jeroen Claassens 💻 🚇 📆 📖 ⚠️	Aura Román 💻 📆 👀 ⚠️	Gryffon Bellish 💻 👀 ⚠️	Vlad Frangu 💻 🐛 👀 📓 ⚠️	Stitch07 💻 📆 ⚠️	depfu[bot] 🚧	allcontributors[bot] 📖
Tyler J Russell 📖	Ivan Lieder 💻 🐛	Hezekiah Hendry 💻 🔧	Vetlix 💻	Ethan Mitchell 📖	Elliot 💻	Jurien Hamaker 💻
Charalampos Fanoulis 📖	dependabot[bot] 🚧	Kaname 💻	nandhagk 🐛	megatank58 💻	UndiedGamer 💻	Lioness100 📖 💻
David 💻	renovate[bot] 🚧	WhiteSource Renovate 🚧	FC 💻	Jérémy de Saint Denis 💻	MrCube 💻	bitomic 💻
c43721 💻	Commandtechno 💻	Aura 💻	Jonathan 💻	Parbez 🚧	Paul Andrew 📖	Mzato 💻 🐛
Harry Allen 📖	Evo 💻	Enes Genç 💻	muchnameless 💻	Priyam 💻	Voxelli 💻	Cit The Dev 💻
Goestav 💻

This project follows the all-contributors specification. Contributions of any kind welcome!